Vigna unguiculata vs Vigna sinensis

Vigna unguiculata and Vigna sinensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Vigna unguiculata	Yes	No	No	No
Vigna sinensis	Yes	No	No	No

As nouns, Vigna unguiculata and Vigna sinensis are synonyms defined as:

Vigna unguiculata and Vigna sinensis: sprawling Old World annual cultivated especially in southern United States for food and forage and green manure

Other synonyms of Vigna unguiculata include black-eyed pea, cowpea, cowpea plant.

Vigna unguiculata (noun)	Vigna sinensis (noun)
sprawling Old World annual cultivated especially in southern United States for food and forage and green manure	sprawling Old World annual cultivated especially in southern United States for food and forage and green manure